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34 views
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<h3><a href="/questions/78358/controlling-2-kw-230v-infra-red-short-wave-heaters-using-electronic-device" class="question-hyperlink">controlling 2 kw,230v- infra red short wave heaters using electronic device</a></h3>
<div class="excerpt">
i want to control infra red short wave heaters 230v,2kw, with some electronic device,
it is an open loop system,where i want to give analog signal to heater from 0 to 100% .
i cant take Thermocouple ...
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<div class="tags t-voltage-regulator t-solid-state-relay t-dimming">
<a href="/questions/tagged/voltage-regulator" class="post-tag" title="show questions tagged \'voltage-regulator\'" rel="tag">voltage-regulator</a> <a href="/questions/tagged/solid-state-relay" class="post-tag" title="show questions tagged \'solid-state-relay\'" rel="tag">solid-state-relay</a> <a href="/questions/tagged/dimming" class="post-tag" title="show questions tagged \'dimming\'" rel="tag">dimming</a>
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asked <span title="2013-08-08 10:06:07Z" class="relativetime">Aug 8 at 10:06</span>
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<a href="/users/27245/user27245">user27245</a><br>
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47 views
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<h3><a href="/questions/78355/how-to-synchronize-internal-rtc-to-computer-time-and-date" class="question-hyperlink">how to synchronize internal RTC to computer time and date</a></h3>
<div class="excerpt">
i am using pic18f67k22 controller.i already configure and initialize internal RTC. But i want start RTC to computer time.so how i can synchronize pic RTC to computer.i have one computer application ...
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<div class="tags t-microcontroller t-pic t-rtc">
<a href="/questions/tagged/microcontroller" class="post-tag" title="show questions tagged \'microcontroller\'" rel="tag">microcontroller</a> <a href="/questions/tagged/pic" class="post-tag" title="show questions tagged \'pic\'" rel="tag">pic</a> <a href="/questions/tagged/rtc" class="post-tag" title="show questions tagged \'rtc\'" rel="tag">rtc</a>
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asked <span title="2013-08-08 08:52:58Z" class="relativetime">Aug 8 at 8:52</span>
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<a href="/users/23841/shail-korat">shail korat</a><br>
<span class="reputation-score" title="reputation score" dir="ltr">23</span><span title="6 bronze badges"><span class="badge3"></span><span class="badgecount">6</span></span>
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<span class="vote-count-post "><strong>1</strong></span>
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<strong>1</strong>answer
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<div class="views " title="46 views">
46 views
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<h3><a href="/questions/78353/spi-interfacing-using-serial-port-or-usb" class="question-hyperlink">SPI Interfacing using Serial Port or USB</a></h3>
<div class="excerpt">
I have a nRF24L01+ module from Nordic Semiconductors. It has SPI interface. My laptop has USB ports and I have a Serial Port (Using a USB-to-Serial_Port adapter). What is the best possible solution to ...
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<div class="tags t-usb t-serial t-spi t-interface">
<a href="/questions/tagged/usb" class="post-tag" title="show questions tagged \'usb\'" rel="tag">usb</a> <a href="/questions/tagged/serial" class="post-tag" title="show questions tagged \'serial\'" rel="tag">serial</a> <a href="/questions/tagged/spi" class="post-tag" title="show questions tagged \'spi\'" rel="tag">spi</a> <a href="/questions/tagged/interface" class="post-tag" title="show questions tagged \'interface\'" rel="tag">interface</a>
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asked <span title="2013-08-08 08:32:08Z" class="relativetime">Aug 8 at 8:32</span>
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<a href="/users/7329/subin-sebastian">Subin Sebastian</a><br>
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<span class="vote-count-post "><strong>2</strong></span>
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<div class="status answered-accepted">
<strong>2</strong>answers
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<div class="views " title="54 views">
54 views
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<h3><a href="/questions/78351/trouble-on-understanding-alu-2-bit-design" class="question-hyperlink">Trouble on understanding ALU 2-bit design</a></h3>
<div class="excerpt">
I\'m new to this site and I\'m pretty "noobish" to electrical engineering coming from a software engineering background I was hoping someone could help me understand this design a bit. I\'ve highlighted ...
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asked <span title="2013-08-08 08:20:46Z" class="relativetime">Aug 8 at 8:20</span>
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<a href="/users/27251/thecodemonsters">theCodeMonsters</a><br>
<span class="reputation-score" title="reputation score" dir="ltr">13</span><span title="2 bronze badges"><span class="badge3"></span><span class="badgecount">2</span></span>
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<span class="vote-count-post "><strong>3</strong></span>
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<div class="status answered">
<strong>1</strong>answer
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<div class="views " title="57 views">
57 views
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<h3><a href="/questions/78348/small-max-5x5-mm-connector-panel-mount-for-asyncronous-serial-interface" class="question-hyperlink">Small (max 5x5 mm) connector, panel mount, for asyncronous serial interface?</a></h3>
<div class="excerpt">
I opened a small router and hooked up 2 wires on the PCB (to catch the serial data). That works fine.
Now I\'m looking for a way to make a small (tiny) connector in the enclosure, so for future use i ...
</div>
<div class="tags t-pcb t-connector t-cases t-mount">
<a href="/questions/tagged/pcb" class="post-tag" title="show questions tagged \'pcb\'" rel="tag">pcb</a> <a href="/questions/tagged/connector" class="post-tag" title="show questions tagged \'connector\'" rel="tag">connector</a> <a href="/questions/tagged/cases" class="post-tag" title="show questions tagged \'cases\'" rel="tag">cases</a> <a href="/questions/tagged/mount" class="post-tag" title="show questions tagged \'mount\'" rel="tag">mount</a>
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asked <span title="2013-08-08 07:20:56Z" class="relativetime">Aug 8 at 7:20</span>
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<a href="/users/8524/rogier">Rogier</a><br>
<span class="reputation-score" title="reputation score" dir="ltr">165</span><span title="6 bronze badges"><span class="badge3"></span><span class="badgecount">6</span></span>
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<span class="vote-count-post "><strong>4</strong></span>
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<div class="status answered-accepted">
<strong>1</strong>answer
</div>
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<div class="views " title="69 views">
69 views
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<div class="summary">
<h3><a href="/questions/78345/what-happened-to-the-to-3-package" class="question-hyperlink">What happened to the TO-3 package?</a></h3>
<div class="excerpt">
TO-3 used to be a common package for power transistors, but you don\'t see them much anymore. It can\'t be just because of SMT, TO-220 is still much in use. TO-3 has a much lower thermal resistance than ...
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<div class="tags t-packages">
<a href="/questions/tagged/packages" class="post-tag" title="show questions tagged \'packages\'" rel="tag">packages</a>
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asked <span title="2013-08-08 07:05:21Z" class="relativetime">Aug 8 at 7:05</span>
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<a href="/users/27167/radagast">radagast</a><br>
<span class="reputation-score" title="reputation score" dir="ltr">334</span><span title="1 silver badge"><span class="badge2"></span><span class="badgecount">1</span></span><span title="11 bronze badges"><span class="badge3"></span><span class="badgecount">11</span></span>
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<span class="vote-count-post "><strong>16</strong></span>
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<div class="status answered-accepted">
<strong>2</strong>answers
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<div class="views " title="431 views">
431 views
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<h3><a href="/questions/78337/which-way-does-electricity-power-a-circuit" class="question-hyperlink">Which way does electricity power a circuit?</a></h3>
<div class="excerpt">
Working with some circuits this summer, I ran into what everyone eventually does: Current flows from + to - despite the electrons flowing (well, bumping into eachother) from - to +. I understand the ...
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<div class="tags t-power-supply t-current t-analog">
<a href="/questions/tagged/power-supply" class="post-tag" title="show questions tagged \'power-supply\'" rel="tag">power-supply</a> <a href="/questions/tagged/current" class="post-tag" title="show questions tagged \'current\'" rel="tag">current</a> <a href="/questions/tagged/analog" class="post-tag" title="show questions tagged \'analog\'" rel="tag">analog</a>
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asked <span title="2013-08-08 04:00:29Z" class="relativetime">Aug 8 at 4:00</span>
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<a href="/users/27243/tom">Tom</a><br>
<span class="reputation-score" title="reputation score" dir="ltr">81</span><span title="4 bronze badges"><span class="badge3"></span><span class="badgecount">4</span></span>
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<span class="vote-count-post "><strong>1</strong></span>
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<div class="status answered">
<strong>2</strong>answers
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<div class="views " title="115 views">
115 views
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<h3><a href="/questions/78336/using-relay-with-microcontroller" class="question-hyperlink">Using Relay With Microcontroller</a></h3>
<div class="excerpt">
I have created a boost converter which boost 12v to 60v. I want to be able to pulse this voltage under water. I would like to have only the positive lead (Vout from boost) to come off the boost ...
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<div class="tags t-microcontroller t-relay">
<a href="/questions/tagged/microcontroller" class="post-tag" title="show questions tagged \'microcontroller\'" rel="tag">microcontroller</a> <a href="/questions/tagged/relay" class="post-tag" title="show questions tagged \'relay\'" rel="tag">relay</a>
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asked <span title="2013-08-08 03:56:44Z" class="relativetime">Aug 8 at 3:56</span>
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<a href="/users/27242/wallace">Wallace</a><br>
<span class="reputation-score" title="reputation score" dir="ltr">58</span><span title="7 bronze badges"><span class="badge3"></span><span class="badgecount">7</span></span>
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<div class="status answered">
<strong>2</strong>answers
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<div class="views " title="48 views">
48 views
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<h3><a href="/questions/78329/how-to-measure-the-current-from-ac-dc-supplier" class="question-hyperlink">how to measure the current from AC-DC supplier?</a></h3>
<div class="excerpt">
I started to learn the AC/DC circuit some times ago. I don\'t have much experience. But from this semester on, I have some chances to practice it in lab by working on some project. I got a AC/DC power ...
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<div class="tags t-power-supply t-dc">
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asked <span title="2013-08-08 02:05:53Z" class="relativetime">Aug 8 at 2:05</span>
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<h3><a href="/questions/78328/reducing-capacitance-of-a-wire" class="question-hyperlink">Reducing capacitance of a wire</a></h3>
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Given a wire and a piece of foil wired to a bread board, is it possible using capacitors wired in series (or some other method) to significantly reduce the capacitance of the wire/foil?
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asked <span title="2013-08-08 02:03:19Z" class="relativetime">Aug 8 at 2:03</span>
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63 views
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<h3><a href="/questions/78322/ground-wire-installation" class="question-hyperlink">Ground Wire Installation [closed]</a></h3>
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Currently I do not have ground in my house wiring. I am planing to install ground wiring but the floor around the main service panel is cemented and I don\'t think I can place a ground rod in the ...
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asked <span title="2013-08-08 00:38:13Z" class="relativetime">Aug 8 at 0:38</span>
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63 views
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<h3><a href="/questions/78319/performance-of-solar-panel-vs-dc-power-supply" class="question-hyperlink">Performance of solar panel vs. DC power supply</a></h3>
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I am building a solar swamp cooler for burning man (hot dry desert environment).
Purchased a 15w solar panel that outputs 0.9a at 20V in full sun (verified as true with my voltmeter). The solar panel ...
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<div class="tags t-power-supply t-dc t-solar-cell">
<a href="/questions/tagged/power-supply" class="post-tag" title="show questions tagged \'power-supply\'" rel="tag">power-supply</a> <a href="/questions/tagged/dc" class="post-tag" title="show questions tagged \'dc\'" rel="tag">dc</a> <a href="/questions/tagged/solar-cell" class="post-tag" title="show questions tagged \'solar-cell\'" rel="tag">solar-cell</a>
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asked <span title="2013-08-08 00:07:34Z" class="relativetime">Aug 8 at 0:07</span>
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<h3><a href="/questions/78318/altium-simulation-node-voltages" class="question-hyperlink">Altium Simulation Node Voltages</a></h3>
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When simulating a circuit in Altium it generates signals based on the components and net labels placed in the circuit, eg:
<span class=\'tex2jax_ignore\'>r1[i]
r1[p]
v1
v2
</span>
Altium also adds the ...
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<div class="tags t-simulation t-circuit-analysis t-altium">
<a href="/questions/tagged/simulation" class="post-tag" title="show questions tagged \'simulation\'" rel="tag">simulation</a> <a href="/questions/tagged/circuit-analysis" class="post-tag" title="show questions tagged \'circuit-analysis\'" rel="tag">circuit-analysis</a> <a href="/questions/tagged/altium" class="post-tag" title="show questions tagged \'altium\'" rel="tag">altium</a>
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asked <span title="2013-08-07 23:55:41Z" class="relativetime">Aug 7 at 23:55</span>
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<h3><a href="/questions/78315/why-does-the-voltage-changes-in-this-simple-circuit" class="question-hyperlink">Why does the voltage changes in this simple circuit?</a></h3>
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I\'m beginning to learn electronics, and there\'s something I just can\'t grasp. I was told that a high resistance in a circuit would lead to a smaller current passing through it, but the voltage would ...
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<div class="tags t-power t-voltage t-current t-resistance t-ohms-law">
<a href="/questions/tagged/power" class="post-tag" title="show questions tagged \'power\'" rel="tag">power</a> <a href="/questions/tagged/voltage" class="post-tag" title="show questions tagged \'voltage\'" rel="tag">voltage</a> <a href="/questions/tagged/current" class="post-tag" title="show questions tagged \'current\'" rel="tag">current</a> <a href="/questions/tagged/resistance" class="post-tag" title="show questions tagged \'resistance\'" rel="tag">resistance</a> <a href="/questions/tagged/ohms-law" class="post-tag" title="show questions tagged \'ohms-law\'" rel="tag">ohms-law</a>
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asked <span title="2013-08-07 23:08:48Z" class="relativetime">Aug 7 at 23:08</span>
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<h3><a href="/questions/78307/how-do-i-figure-out-the-correct-polarity-of-a-dc-barrel-connector" class="question-hyperlink">How do I figure out the correct polarity of a DC barrel connector</a></h3>
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I\'m in the U.S. and I bought a digital wall clock from the U.K. which came with an AC adapter with input 230V/50Hz/90mA and output 9V/800mA. Now I could get a transformer to convert 120V to 230V but ...
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asked <span title="2013-08-07 21:38:15Z" class="relativetime">Aug 7 at 21:38</span>
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# Print the match result
str.scan(re) do |match|
puts match.to_s
end
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Ruby, please visit: http://ruby-doc.org/core-2.2.0/Regexp.html